Hey I thought it was just my gear that did that !!!!!!
Both my W30 and my A50 Have the whine damned annoying I agree !!!! Iwonder if it has anything to do with the power suppy of the country that you are in (Here in NZ we have 240v 50mHz AC )same as th UK i think...... are any of you in the US (110 v)???? especially daniel ....where are you since yours makes no noise